Dwyer Instruments SFI-100-1 Indicator 326058-755 This specific 998-0036-00 model is

This specific 998-0036-00 model is engineered for the discharge side with a 2-3/4" center-to-center bolt spacing

This stem is compatible with both pneumatic and electric actuators

How do I test if the thermistor is failing

The York S1-026-42586-000 Fan Guard is a field-proven 24-inch black fan guard engineered for a precision fit on external condenser fan assemblies

allowing for rapid differential pressure measurement and system venting

Dwyer Instruments SFI-100-1 Indicator 326058-755 This specific 998-0036-00 model isThe Dwyer Instruments SFI 100 1 Indicator is a field proven sight flow indicator designed for immediate visual verification of fluid movement within 1" piping systems. Built with a rugged bronze body and a single tempered glass window, this unit is engineered to withstand demanding mechanical environments. It features a bright red ABS impeller that provides high visibility rotation, allowing contractors to diagnose flow status for both compatible